import java.util.Random;

public class ThreadDemo {
    private static class MyThread extends Thread{
        public void run(){
            Random random=new Random();
            while (true){
                System.out.println(Thread.currentThread().getName());
                try {
                    Thread.sleep(random.nextInt(10));
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        MyThread t1= new MyThread();
        t1.start();
        Random random=new Random();

        while (true){
            System.out.println(Thread.currentThread().getName());
            try {
                Thread.sleep(random.nextInt(10));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
